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- Title
RESEARCH OF THE LASER TREATMENT OF ZINC OXIDE.
- Authors
Redka, D. N.
- Abstract
Large size (~1,4M²) silicon-based thin-film solar module (SM) consists of elements connected between each other in a way to get the maximum efficient solar energy conversion in the output. In solar modules production the technological process of separating elements is realized using laser scribing. As a result, the SM area will consist of «active area», where the photoeffect occurs, providing the current constituent part of the converted energy, and «dead zone», which does not participate in photo-electric current generation, but it is a required element for effective separate elements commutation. The research includes analysis of possibility to decrease the «dead zone» and to increase the parameters of electrical energy output. This can be achieved both by decreasing the width of scribes and by optimizing the commutative connections of SM elements. In terms of precision and quality of manufacture the shape and type of the scribes depend on laser irradiance parameters used in technological process of division of SM into separate elements. Recently, much work has been done to improve the optical and electrical properties of ZnO films. A comprehensive study of optical (transmittance, scattering) and electrical properties (carrier mobility, carrier concentration, conductivity, resistance) as well as surface topography allows to give recommendations for optimizing the process of obtaining layers with the parameters enabling their use in thin-film solar modules. Parameters of the conductive layers can be changed by the method of doping with boron zinc oxide films, ion etching and laser annealing.
- Subjects
ABLATION (Aerothermodynamics); LASER ablation; ZINC oxide thin films; LASER beams; ANNEALING of metals; ELECTRON beam annealing
- Publication
Smart Nanocomposites, 2016, Vol 7, Issue 1, p42
- ISSN
1949-4823
- Publication type
Article